Application of multidisciplinary design optimization methods in underwater unmanned vehicle
To improve the reliability and robustness of the underwater unmanned vehicle,the multidisciplinary de-sign optimization method is adopted to optimize the overall design of the vehicle.First,we conduct the discipline design of the underwater vehicle in the overall design stage,analyze the internal models and calculation methods of each discipline,and clarify the input,output,and coupling relationships for each discipline.We then perform pa-rameter modeling within the discipline and establish the design variables of the overall design,system parameters,and constraints.By taking the lightest weight and strongest maneuverability of the aircraft as the optimization goals,we obtain the optimal solution for the design variables and the main output value of the optimal design.The opti-mized calculated value of the design variables effectively improves the ability of the design plan to meet the con-straints.Moreover,the main output results of the optimized design provide a quantitative basis for selecting aircraft plans.